Elbeidge wheeler



UNITED STATES fFATENfr,A Ormes.

ELBRIDGE WHEELER, OF BOSTON, MASS., ASSIGNOR ',:lO I-IIMSELF, TARE B.

' GAY, AND GEORGE W. GOGIN, TRUSTEES, ALL SAME PLACE.

MOLD. l

I SPECIPICATIQ. vpant of Letters Patent No. 361,798, dated April 26, 1887.

` Application mea Muy s, isst. semi No. 201.322. (No man.)

'representing like parts.

Y My invention has for its object to provide molds with means, as will be described,whereby parallelingots may be cast of uniform area in cross-section from top to bottom, my invention also having for its object to prolong the life of the mold in which said parallel ingots are cast.

Molds such as ordinarily found in steel plants, and usually composed of cast-iron, have been made tapering, inl order to facilitate the withdrawal of the mold from the ingot cast within it.

In casting the steel or other metal in thej kind of molds referred to it frequently happens that the cast metal sticks to the walls of the mold into which it has been cast. In such instances it is necessary to pound or otherwise subject the mold to strain, in order to disassociate the metal and the mold.

The primary object of this invention is to 'prolong the life of the mold by preventing' the metal from sticking to the walls of the mold, therebyobviating pounding and straining the said mold.

I accomplish my object by means of four independent rectangular plates set within the iiask'or mold, the platesforming'when in position the'inner walls ofthe mold.

Figure l represents in sectional elevation one form of mold provided with plates by which to practice my invention; Fig. 2, a top View of Fig. l; Fig. 3, a top or end view of a modified form of mold by'which to produce a vparallel ingot; Fig. 4, a sectional View of Fig. 3 on line x Fig. 5, an. isometric view of a parallel ingot which :may be produced in the mold, Figs. 1 and 8; Fig. 6, a detail to be reband encircling and holding together the walls of the mold.

Figs. 1 and 2 show one form of myimproved mold, the sameibeing composed of four independent rectangular inetal plates, l) b, inclosed by a ask, (represented as of two parts, a a,) preferably of cast-iron, the parts of the flask being shown as tapering, to permit the section a to be readily withdrawn from between the plates and the section a. The plates b at thelr junction with each other (see Fig. 2) are recessed to receive sand, -soapstone, or other suitable material to prevent the passage of molten metal between them.

In Figs. 3 and 4, showing a modification of my invention, the metal plates b, having bent lugs d* at their outer sides, are set within the ask a. (Shown as a parallel-sided box.) The lugs d* of the plates support metal bands d5, (see Figs. 4 and 6,) and wedges e are employed between the bands and plates to force closely together the j oints between the plates b. These plates are surrounded by sand, soapstone, or

other equivalent material, d', to prevent the cast metal running through the joints of the said plates. The band d5 is sufficiently large to permit the plates b to fall away from one another when the mold is not in use, the said plates being brought into close contact, as shown in Fig. 3, by wedges e, inserted between the band d5 and the plate b, when it is desired to use the mold.

)Vith the mold shown in Fig. 3 the metal east into the said mold is allowed to set, and after said metal has set the flask or mold twill be withdrawn, permitting the sand to fall away from the plates b, and the wedges e are then withdrawn, thereby allowing the said plates to be easily removed from the ingot.

With the mold shown in Figs. l and 2 the section a is fitted into the section a, which latter rests upon any suitable or ordinary base or support, and the vplates b are` then arranged inside the section a', to form theinner walls of the mold. After theplates b have been placed in position within the section a', the recesses in the corners of the said plates are illed in with sand, as shown in Fig. 2. The metal is then cast into the mold, and after it has set and the ingot has become suffi ciently hard the section a is withdrawn from between the section a and the plates b by means of hooks engaging l loops dw, or in other suitable manner.

g, comprising th'erec't-` angular independent plates b, provided with I do not herein broadly claim :t mold made 2. A moldfor casita@- Of removable sections united by a tongue-andgroove joint, such a mold being shown in hooks, a. surrounding band arranged 'in said 15 Erglish Patent No. 2,043* of 1868. hooks and wedged to hold it there, and an exclaim- 'i ternalllask, substantially as described.

-In testimony whereof I have signed my name to this specication in the presence of two subscribing witnesses.

- ELBRIDGE WHEELER.`

1. The inner mold consiisting of the four in-. dependent rectangular p lttes b, the ends of each of two plates abuttin against the faces of each of the other two pl tes, and not otherwise united or connected, combined with the ontermold and the packing or filling between the two molds, substantially as described.

Witnesses:

G. W. GREGORY, e y J. H. CHURCHILL. 

